Home / 789,871.76-1,184,830.20-310,079.60

Finding the Fourth Proportional to 789,871.76, 1,184,830.20 and 310,079.60

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Solution

The fourth proportional to 789,871.76, 1,184,830.20 and 310,079.60 is: 465,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,871.76 : 1,184,830.20 = 310,079.60 : x
  2. Step 2: Convert to fraction form
    789,871.76/1,184,830.20 = 310,079.60/x
  3. Step 3: Cross multiply
    789,871.76x = 1,184,830.20 × 310,079.60
  4. Step 4: Simplify right side
    789,871.76x = 367,391,674,483.92
  5. Step 5: Solve for x
    x = 367,391,674,483.92/789,871.76
  6. Step 6: Final answer
    x = 465,128.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.